Volume 3 nr 1 / 2011 - Academia Oamenilor de Stiinta din Romania

Two-dimensional Modelling of Accidental Flood Wave Propagation 89S bx , S by – bed slope on x and y directions, n – Manning coefficient, g – gravity andD – hydraulic diameter = 4r.The results are written in a number of folders and presents: water level, watervelocity and discharge for each point of the mesh. With these values, otherparameters can be calculated: Froude number, shear stress etc.5.4. Post-processingAfter numerical calculation, the results can be imported in SMS. Thus, theflooded surface can be presented and the water depth can be determined. Layerswith these parameters at each time step can be exported in GIS programs, this waythe structural or non-structural decisions can be easily made.For Poiana Uzului dam brake scenarios, flood wave propagation times weredetermined. Tabels 1 and 2 contains this parameters for four localitiesdownstream the dam. Figures 17, 18, 19 and 20 shows the propagation wave atcertain time steps for scenario 1.Table 1. Propagation times if scenario 1 takes place.Localitatea Distanţa faţă de baraj Timpul de propagareSălătruc 2 km 10 minDărmăneşti 6 km 30 minDofteana 11 km 70 minTârgu Ocna 25 km 105 minTable 2. Propagation times if scenario 2 takes place.Localitatea Distanţa faţă de baraj Timpul de propagareSălătruc 2 km 40 minDărmăneşti 6 km 50 minDofteana 11 km 100 minTârgu Ocna 25 km 130 minCopyright © Editura Academiei Oamenilor de Știință din România, 2011Watermark Protected